公开(公告)号：US20240291002A1

公开(公告)日：2024-08-29

申请号：US18574345

申请日：2022-06-21

Applicant: HENGST SE

Inventor： Mathias DIEKJAKOBS ,  Tobias PIEPER ,  Martin ROELVER ,  Julian NIEHOFF ,  Stephan AHLBORN

IPC: H01M8/04119 ,  H01M8/04082 ,  H01M8/0662

CPC classification number: H01M8/04156 ,  H01M8/0687 ,  H01M8/04201

Abstract: The invention relates to a recovery system (10) for recovering a recirculation flow that exits a fuel cell (102) and contains hydrogen, said recovery system comprising an active centrifugal separator (16, 26) designed to separate liquid water from the recirculation flow.

公开(公告)号：US20220054959A1

公开(公告)日：2022-02-24

申请号：US17312833

申请日：2019-12-03

Applicant: HENGST SE

Inventor： Sieghard PIETSCHNER ,  Stephan AHLBORN ,  Roland EDLERHERR

IPC: B01D29/58 ,  B01D29/60 ,  B01D35/143 ,  B01D35/153 ,  B01D35/16 ,  B01D36/00

Abstract: A method to determine at least one filter operating parameter. At least one transponder arranged on or in a filter cartridge of the filter is contactlessly queried by a reading device. A transponder response is analyzed to evaluate the operating parameter. The transponder is subject to influences acting on the filter cartridge. As a result of the influences that the transponder is sensitive to, or sensitivity on transparency or damping properties of a transmission path of electronic signals between the transponder and the reading device, a transponder response behavior is changed to a degree detectable by the reading device or a downstream analysis unit which enables a statement to be made about the operating parameter. A device for determining at least one operating parameter of a filter or a filter cartridge arranged on or in the filter, and a filter cartridge are both provided.

公开(公告)号：US20180350169A1

公开(公告)日：2018-12-06

申请号：US15614696

申请日：2017-06-06

Applicant: Hengst SE & Co. KG ,  Hengst of North America, Inc.

Inventor： Stephan AHLBORN ,  David Mark POLLOCK

IPC: G07C5/08 ,  F01M13/04 ,  G07C5/00

Abstract: A method and a device for monitoring the functioning of a crankcase ventilation system of an internal combustion engine, crankcase ventilation gas being supplied to an intake line of the internal combustion engine via at least one crankcase ventilation line from the crankcase via an oil separator and a crankcase pressure regulating valve. An immediate surrounding environment of the internal combustion engine is monitored by at least one sensor that is sensitive to crankcase ventilation gas or to at least one crankcase ventilation gas component for the occurrence of crankcase ventilation gas, and that, if a presence of crankcase ventilation gas is determined, an informative or warning message is produced.